Financial Instruments and Risk Management (Tables)

12 Months Ended

Sep. 30, 2017

Fair value of the Partnership's derivative instruments and their location in the condensed consolidated balance sheets

The following summarizes the fair value of the Partnership’s derivative instruments and their location in the consolidated balance sheets as of September 30, 2017 and September 24, 2016, respectively:

	As of September 30, 2017			As of September 24, 2016
Asset Derivatives	Location	Fair Value		Location	Fair Value
Derivatives not designated as hedging instruments:
Commodity-related derivatives	Other current assets	$	11,164	Other current assets	$	3,306
	Other assets		771	Other assets		1,546
		$	11,935		$	4,852

Liability Derivatives	Location	Fair Value		Location	Fair Value
Derivatives designated as hedging instruments:
Interest rate swap	Other current liabilities	$	—	Other current liabilities	$	205
		$	—		$	205
Derivatives not designated as hedging instruments:
Commodity-related derivatives	Other current liabilities	$	1,978	Other current liabilities	$	1,002
	Other liabilities		432	Other liabilities		1,353
		$	2,410		$	2,355

Reconciliation of the beginning and ending balances of assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs

The following summarizes the reconciliation of the beginning and ending balances of assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs:

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
	Fiscal 2017					Fiscal 2016
	Assets			Liabilities		Assets			Liabilities
Beginning balance of over-the-counter options	$	809		$	—	$	2,781		$	347
Beginning balance realized during the period		(667	)		—		(2,781	)		(347	)
Contracts purchased during the period		3,686			737		809			—
Change in the fair value of outstanding contracts		280			—		—			—
Ending balance of over-the-counter options	$	4,108		$	737	$	809		$	—

Effect of the Partnership's derivative instruments on the condensed consolidated statements of operations

The effect of the Partnership’s derivative instruments on the consolidated statements of operations for fiscal 2017, 2016 and 2015 are as follows:

	Amount of Gains			Gains (Losses) Reclassified from
	(Losses)			Accumulated OCI into Income
	Recognized in OCI			(Effective Portion)
Derivatives in Cash Flow Hedging Relationships	(Effective Portion)			Location	Amount
Interest rate swaps:
Fiscal 2017	$	(10	)	Interest expense	$	(215	)

Fiscal 2016	$	6		Interest expense	$	(1,100	)

Fiscal 2015	$	(1,159	)	Interest expense	$	(1,388	)

	Unrealized Gains (Losses) Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount
Commodity-related derivatives:
Fiscal 2017	Cost of products sold	$	6,277

Fiscal 2016	Cost of products sold	$	(1,190	)

Fiscal 2015	Cost of products sold	$	1,855

Fair value of the Partnership's recognized derivative assets and liabilities on a gross basis and amounts offset on the condensed consolidated balance sheets

The following table presents the fair value of the Partnership’s recognized derivative assets and liabilities on a gross basis and amounts offset on the consolidated balance sheets subject to enforceable master netting arrangements or similar agreements:

	As of September 30, 2017
						Net amounts
						presented in the
	Gross amounts		Effects of netting			balance sheet
Asset Derivatives
Commodity-related derivatives	$	16,378	$	(4,443	)	$	11,935
	$	16,378	$	(4,443	)	$	11,935

Liability Derivatives
Commodity-related derivatives	$	6,853	$	(4,443	)	$	2,410
	$	6,853	$	(4,443	)	$	2,410

	As of September 24, 2016
						Net amounts
						presented in the
	Gross amounts		Effects of netting			balance sheet
Asset Derivatives
Commodity-related derivatives	$	6,842	$	(1,990	)	$	4,852
Interest rate swap		230		(230	)		—
	$	7,072	$	(2,220	)	$	4,852

Liability Derivatives
Commodity-related derivatives	$	4,345	$	(1,990	)	$	2,355
Interest rate swap		435		(230	)		205
	$	4,780	$	(2,220	)	$	2,560